Subject
Plant hybridization Books
Best books
Hugo de Vries
Species and Varieties, Their Origin by Mutation
"Species and Varieties, Their Origin by Mutation" by Hugo de Vries is a scientific publication written in the early 20th century. The book presents lectures focused on the theory of mutation as a key mechanism for the origin of species and varieties, challenging the slow change model proposed by Darwin and others. De Vries argues for sudden mutations that generate new species, suggesting that the processes underlying species formation can be experimentally investigated, particularly in agricultural and horticultural contexts. The opening of the work introduces the premise of mutation theory, highlighting how it diverges from traditional evolutionary thought. De Vries outlines his intention to demonstrate that new species and varieties arise suddenly, rather than through gradual changes, and he emphasizes the importance of empirical research and controlled experiments in this context. He also critiques the limitations of existing theories of descent, particularly Darwin's reliance on gradualism, by insisting that the experimental observation of mutative processes offers a more fruitful approach for understanding evolutionary biology. The author sets the stage for further explorations into specific examples, methodologies, and implications of his findings throughout the rest of the lectures.
Gregor Mendel
Versuche über Pflanzenhybriden
"Versuche über Pflanzenhybriden" by Gregor Mendel is a scientific paper written in 1865 and published in 1866. Based on experiments with approximately 28,000 pea plants conducted between 1856 and 1863, Mendel compared seven distinct characteristics to understand how traits pass from one generation to the next. His discoveries revealed that certain traits dominate over others, challenging prevailing theories about inheritance. Though initially overlooked, this work would later become foundational to modern genetics.
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